// 默认样式
.try-button {
  position: absolute;
  bottom: 1em;
  right: 1em;
  font-weight: 100;
  border: 1px solid #719af4;
  border-radius: 4px;
  color: #719af4;
  padding: 2px 8px;
  text-decoration: none;
  transition-timing-function: ease;
  transition: opacity .3s;
  opacity: 0;
}

// hover 样式
.content__default:not(.custom) a.try-button:hover {
  background-color: #719af4;
  color: #fff;
  text-decoration: none;
}